Md Rafsan Mahmud - QA Engineer Portfolio

About

QA Engineer with hands-on experience ensuring software quality across web and mobile platforms through structured test engineering,

robust defect management and scalable automation solutions. Highly proficient in designing comprehensive test suites, executing risk-based manual validation, and building enterprise-grade UI/API testing frameworks using Playwright (JavaScript). Skilled at implementing Behavior-Driven Development (BDD) architectures to bridge technical execution with business requirements within fast-paced Agile teams.

Technical Skills

Automation TestingManual TestingAPI TestingPerformance TestingRegression TestingSmoke TestingTest CasesJIRAAgilePlaywrightJavaJavaScriptPythonSeleniumREST APIPostmanJMeterGitHubHTMLCSS

Soft Skills

CommunicationProblem SolvingAnalytical ThinkingAttention to DetailTime ManagementTeam CollaborationAdaptabilityOwnership & AccountabilityQuick Learning

Experience

Goama Pte Ltd

Software QA EngineerAugust 2025 - Present

● End-to-End Integration Testing: Executed full-platform setup and regression testing for high-traffic tournament engines integrated into major global enterprise applications, including bKash (Bangladesh), Nequi (Colombia), Avolta (Kazakhstan region), and Ooredoo (Myanmar).

● Payment & Transaction Validation: Designed and executed critical test cases for subscription funnels, digital wallets, carrier billing, and localized payment gateway microtransactions to secure revenue streams.

● Functional Test Engineering: Created 180+ detailed test scenarios covering core platform features, including user feeds, real-time dynamic leaderboards, paid tournaments, and automated prize disbursement logic.

● UI/UX & Visual Verification: Conducted pixel-perfect visual compatibility and layout testing across responsive viewports against Figma design specifications.

● Defect Lifecycle Management: Logged, tracked, and verified complex software defects in Jira, documenting root-cause analysis using browser DevTools to accelerate engineering fix cycles.

● Agile & Cross-Functional Sprints: Collaborated closely with cross-border product managers, UI designers, and developer teams to clarify requirements and optimize release cycles.

Projects

Dmoney API Testing with POSTMAN

This project presents a professional-grade API testing project for the Dmoney REST API, focusing on financial transaction operations like deposits,...

Dmoney API Chaining with JMeter

This project demonstrates a robust API Chaining strategy using Apache JMeter, tailored for testing the Dmoney financial system. The test...

Selenium-Based Web Form Automation Using Java

Designed and implemented an automated test script to validate a dynamic web registration form using Java and Selenium WebDriver. The...

Education

SSC

Shamsul Haque Khan School & College

2016

HSC

Government Science College

2018

Graduation

East West University - EWU

2023

Certificate

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